Why is the ffp2 certificate so difficult to obtain| KENJOY

In addition to the high testing fees, testing locations in Europe, long process time and other factors, the stringent testing standards have deterred many mask manufacturers. The following FFP2 mask filtration efficiency test and respiratory resistance test as examples to illustrate the high standard of testing.

Specification standard for FFP2 protective respirators

Both European and American protective masks are designated to be tested by American TSI-8130Automated Filter Testers instruments. The American standard class N uses the NaCl method, the class R uses the DOP method, and the European standard uses the DOP method. European testing uses DOP oil to produce dust. The diameter of DOP oil particles is 0.33 μ m, the counting average diameter is 0.20 μ m, and the filtration efficiency is required to be no less than 94%. On the one hand, the filtration effect is related to the particle size, in addition, it is also affected by whether the particles contain oil or not.

In addition, the EU breath test standards for FFP2 respirators are also very stringent. The inspiratory resistance test uses the flow rate of 95L/min and the expiratory resistance test uses the flow rate of 160L/min. Such stringent filtration efficiency and respiratory resistance standards make many manufacturers back down directly.

New high-end nano-materials

The stringent test standards of filtration efficiency and respiratory resistance make FFP2 masks have high requirements for filter materials. The filtration efficiency has been tested by DEKRA to exceed 96%. It protects people's health by filtering and blocking the infiltration of harmful substances such as dust particles, bacteria, viruses and oily particles in the air. The surface morphology of the new nano-material is a spider-web-like microporous structure, which is a flexible and elastic microporous material with high porosity, uniform pore size distribution, air permeability and water permeability. At the same time, it also has respiratory function to ensure the comfort of wearing. The material is a high-performance material with high temperature resistance, corrosion resistance, high toughness and strength, and good biocompatibility. The fiber and pore size of the nano-material are in the nanometer level, and can directly block bacteria, viruses and dust through the action of physical barrier.

This is why the ffp2 certificate is so difficult to get. If you want to know more about ffp2 masks, please feel free to contact us.